Publications

Environmental DNA surveys can determine in-stream dominance of non-native brook charr Salvelinus fontinalis over native brown trout Salmo trutta.

Ecological Indicators 173(3–4):113407

doi: 10.1016/j.ecolind.2025.113407

A self-reproducing population of common carp Cyprinus carpio at 59°16'N in Sweden.

Aquaculture, Fish and Fisheries 5:e70056

doi: 10.1002/aff2.70056

Effects of different preservatives during ecological monitoring of myxozoan parasite Tetracapsuloides bryosalmonae causing proliferative kidney disease (PKD) in salmonids.

Journal of Fish Diseases 48(6):e14095

doi: 10.1111/jfd.14095

Persistent and emerging threats to Arctic biodiversity and ways to overcome them: a horizon scan. Arctic Science 11:1-29

doi: 10.1139/as-2024-0035

Are there lingering effects of egg thiamine deficiency (M74) in thiamine-treated Baltic Sea salmon (Salmo salar) juveniles?  

Aquaculture 595:741581

doi: 10.1016/j.aquaculture.2024.741581

Standardized intermittent shoreline boat electrofishing for slow-flowing rivers in Sweden.

MethodsX 13:102907

doi: 10.1016/j.mex.2024.102907

Disparities in body color adaptability and ambient light colour preference between wild and hatchery-reared marbled rockfish (Sebastiscus marmoratus) 

Animals 14(11):1701

doi: 10.3390/ani14111701

No support for using brown trout as an indicator species for ecological impacts of low flow in Swedish rivers.

Environmental and Sustainability Indicators 23:100414

doi: 10.1016/j.indic.2024.100414

Effects of exercise training on the external morphology, growth performance, swimming ability, body composition and metabolism of juvenile black seabream Acanthopagrus schlegelii.

Aquaculture 587:740878

doi: 10.1016/j.aquaculture.2024.740878  

Considerations needed for analysing data from the Swedish Electrofishing RegiSter (SERS), with special reference to the RivFishTIME database of long-term riverine fish surveys

Fauna norvegica 42:47-51

doi: 10.5324/fn.v42i0.5647

Effects of the invasive swim bladder parasite Anguillicola crassus on health and condition indicators in the European eel

Journal of Fish Diseases 46(10):1029-1047

doi: 10.1111/jfd.13822  

Males show their best side revisited – effects of predation pressure on laterality in wild guppies.

Ethology 129(8): 390-405

doi: 10.1111/eth.13376

Contrasting long-term trends in brown trout abundance along a latitudinal gradient: effects of climate, stream size and migration strategy

Ecography 2023(5):e06522

doi:  10.1111/ecog.06522

Featured on the cover of the journal

Fish biodiversity in different types of tributary mouths located within impounded sections of Swedish boreal rivers.

Ecohydrology & Hydrobiology 23:48-65

doi: 10.1016/j.ecohyd.2022.11.004

Negative influence of a threatened species on ecological status classification: a case study of the influence of European eel within the Swedish fish index VIX.

Ecological Indicators 144:109537

doi: 10.1016/j.ecolind.2022.109537

Isolation-rearing affects intra-specific interaction behaviour and the size of the cerebellar brain region in juvenile Atlantic salmon.

Journal of Fish Biology 101(3):711-721

doi: 10.1111/jfb.15142 

Effects of spawning group sex ratio and stocking density on the outcome of captive reproduction in golden cuttlefish Sepia esculenta

Aquaculture 559:738416

doi: 10.1016/j.aquaculture.2022.738416  

Downstream bypass efficiency of Atlantic salmon Salmo salar smolts in relation to bypass cobble substrate and flow velocity.

Ecological Engineering 181:106695

doi: 10.1016/j.ecoleng.2022.106695

Differences in external morphology, body composition and swimming performance between hatchery- and wild-origin marbled rockfish (Sebastiscus marmoratus)

Frontiers in Marine Science 9:912129

doi: 10.3389/fmars.2022.912129 

A screening study of relationships among concentrations of algal toxins, PFAS, thiamine deficiency and biomarkers in European flounder from the south Baltic Sea.

Regional Studies in Marine Science 53:102427

doi: 10.1016/j.rsma.2022.102427

From individuals to communities: habitat complexity affects all levels of organization in aquatic environments.

WIREs Water 9(1):e1575

 doi: 10.1002/wat2.1575

Reared to become wild-like: addressing behavioral and cognitive deficits in cultured aquatic animals destined for stocking into natural environments – a critical review.

Bulletin of Marine Science 97(4):489-538

doi: 10.5343/bms.2020.0039 

Cobble substrate in a surface bypass reduces bypass acceptance by common roach Rutilus rutilus.

Ecological Engineering 172:106402

doi: 10.1016/j.ecoleng.2021.106402

Pugheadedness in fishes

Reviews in Fisheries Science & Aquaculture 30(3):306-329 

doi: 10.1080/23308249.2021.1957772

Fast life-histories are associated with larger brain size in killifishes

Evolution 75(9): 2286-2298

doi: 10.1111/evo.14310

Unreplicable state-dependent effects on start-box emergence latency in wild-origin sticklebacks

Ethology 127(8):621-631

doi: 10.1111/eth.13169

Thermal performance under constant temperatures can accurately predict insect development times across naturally variable microclimates

Ecology Letters 24(8):1633-1645

doi: 10.1111/ele.13779

Variation in developmental rate is not linked to environmental unpredictability in annual killifishes

Ecology and Evolution 11(12):8027-8037

doi: 10.1002/ece3.7632

Disentangling the nonlinear effects of habitat complexity on functional responses

Journal of Animal Ecology 90(6):1525-1537 

doi: 10.1111/1365-2656.13473

Behavioural repeatability in larval Limnephilus lunatus (Trichoptera) in an open-field test.

Aquatic Insects 42(1):62-77. 

doi: 10.1080/01650424.2020.1865545

Sperm competition in golden cuttlefish Sepia esculenta: the impact of mating order and male size.

Aquaculture 530:735929. 

doi: 10.1016/j.aquaculture.2020.735929

Systematic review and meta-analysis of PIT tagging effects on mortality and growth of juvenile salmonids.

Reviews in Fish Biology and Fisheries 30:553–568. 

doi: 10.1007/s11160-020-09611-1

Within-stream phenotypic divergence in head shape of brown trout associated to invasive brook trout

Biological Journal of the Linnean Society 129(2):347-355.

doi: 10.1093/biolinnean/blz192

Cue recognition and behavioural responses in the three-spine stickleback (Gasterosteus aculeatus) under risk of fish predation.

acta ethologica 22(3):209-221. 

doi: 10.1007/s10211-019-00324-8

Fish density, but not environmental enrichment, affects the size of cerebellum in the brain of juvenile hatchery-reared Atlantic salmon

Environmental Biology of Fishes 102(5):705–712. 

doi: 10.1007/s10641-019-00864-9

Laboratory captivity can affect scores of metabolic rates and swimming activity in wild brown trout

Journal of Zoology 307(4):249-255. 

doi: 10.1111/jzo.12642

Mapping the distribution of scale-rayed wrasse Acantholabrus palloni in Swedish Skagerrak using angling records

PeerJ 6:e5900. 

doi: 10.7717/peerj.5900

Relative mass of brain and intestinal tissue in juvenile brown trout: no long-term effects of compensatory growth; with additional notes on emerging sex-differences

Fishes 3(4):38. 

doi: 10.3390/fishes3040038

Checklist of the fishes of the newly discovered coral reef in Iraq, north-west Arabian Gulf,  with 10 new records to the Arabian Gulf

aqua, International Journal of Ichthyology 24(3):89-138. 

Featured on the cover of the journal

Studying behavioural variation in salmonids from an ecological perspective: observations, questions and methodological considerations

Reviews in Fish Biology and Fisheries 28(4):795-823.

doi: 10.1007/s11160-018-9532-3

Angling selects against active and stress-resilient phenotypes in rainbow trout

Canadian Journal of Fisheries and Aquatic Sciences 76(2):320-333. 

doi: 10.1139/cjfas-2018-0085

Selected as Editors' Choice in CJFAS, November 2018

Catalogue of morphological scale deformities from 13 species of freshwater fish from the Kaniv Reservoir (Dnieper), Ukraine

Marine and Freshwater Research 69(10):1569-1594. 

doi: 10.1071/MF18018

Behavioral type, in interaction with body size, affects the recapture rate of brown trout Salmo trutta juveniles in their nursery stream

Integrative Zoology 13(5):604-611. 

doi: 10.1111/1749-4877.12323

Who will become dominant? Investigating the roles of individual behaviour, body size, and environmental predictability in brown trout fry hierarchies

European Journal of Ecology 3(2):123-133. 

doi: 10.1515/eje-2017-0020

Scale deformity descriptions for 23 species of fish, from various geographical areas and habitats

Marine and Freshwater Research 69(2):313-324. 

doi: 10.1071/MF17110

Performance of wild brown trout in relation to energetic state and lab-scored activity during the early-life survival bottleneck

Behavioral Ecology and Sociobiology 71(11):165.

doi: 10.1007/s00265-017-2395-0

Interspecific association of brown trout (Salmo trutta) with non-native brook trout (Salvelinus fontinalis) at the fry stage

Ethology 123(12):933-941. 

doi: 10.1111/eth.12692

Comparative osteology of the family Tripterygiidae (Teleostei: Blenniiformes)

Journal of the Marine Biological Association of the United Kingdom 98(6):1487-1511. 

doi: 10.1017/S002531541700042X

Encystment of parasitic mussel larvae coincides with increased metabolic rate and haematocrit in juvenile brown trout

Parasitology Research 116(4):1353-1360. 

doi:10.1007/s00436-017-5413-2

Co-existence with non-native brook trout breaks down the phenotypic syndrome in brown trout parr

Functional Ecology 31:1582-1591. 

doi:10.1111/1365-2435.12862

Interview with JIJ about the paper in SEB Magazine (p. 37)

Cardiac remodeling and increased central venous pressure underlie elevated stroke volume and cardiac output of seawater-acclimated rainbow trout

American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 312:R31-R39. 

doi:10.1152/ajpregu.00374.2016

Popular science summary from J. Exp. Biol (Outside JEB section)

Environment-dependent plasticity and ontogenetic changes in the brain of hatchery-reared Atlantic salmon

Journal of Zoology 301(1):75-82.

 doi:10.1111/jzo.12392

Heavy loads of parasitic freshwater pearl mussel (Margaritifera maragritifera L.) larvae impair foraging, activity, and dominance performance in juvenile brown trout (Salmo trutta L.)

Ecology of Freshwater Fish 27(1):70-77. 

doi:10.1111/eff.12324

First records of scale deformities in seven freshwater fish species (Actinopterygii: Percidae and Cyprinidae) collected from three ponds in the Czech Republic

Acta Ichthyologica et Piscatoria 46(3):225–238. 

doi:10.3750/AIP2016.46.3.06

State-dependent behavior and alternative strategies in brown trout (Salmo trutta L.) fry

Behavioral Ecology and Sociobiology 70:2111. 

doi: 10.1007/s00265-016-2215-y

Born to be wild: effects of rearing density and environmental enrichment on stress, welfare and smolt migration in hatchery reared Atlantic salmon

Canadian Journal of Fisheries and Aquatic Sciences 74(3):396-405.

doi: 10.1139/cjfas-2015-0515

Do individual activity patterns of brown trout (Salmo trutta) alter the exposure to parasitic freshwater pearl mussel (Margaritifera margaritifera) larvae?

Ethology 122(9):769–778. 

doi: 10.1111/eth.12524

Is behaviour in a novel environment associated with bodily state in brown trout Salmo trutta fry?

Ecology of Freshwater Fish 26(3):462–474.

doi: 10.1111/eff.12291

Inactive trout come out at night: behavioural variation, circadian activity and fitness in the wild

Ecology 97(9):2223-2231.

doi: 10.1002/ecy.1475

Behavioural reactions of three-spined sticklebacks to simulated risk of predation – effects of predator distance and movement

FACETS 1:55-66. 

doi: 10.1139/facets-2015-0015

Environmental enrichment for fish in captive environments: effects of physical structures and substrates

Fish and Fisheries 17(1):1-30. 

doi: 10.1111/faf.12088

A synthesis paper in press since 2014; finally published in 2016. Includes a bibliography with summaries of results from studies investigating environmental enrichment for fish; see Supporting information

Reduced hatchery rearing density increases post-release migration success of Atlantic salmon (Salmo salar) smolts

Canadian Journal of Fisheries and Aquatic Sciences 73(5):804-810.

doi: 10.1139/cjfas-2014-0563

Autumn food-restriction reduces smoltification rate, but not over-winter survival, in juvenile brown trout Salmo trutta

Ecology of Freshwater Fish 26:205-216.

doi: 10.1111/eff.12268  

Effects of familiarity and population density on competitive interactions and growth: an experimental study on a territorial salmonid fish

Ethology 121(12):1202-1211.

doi: 10.1111/eth.12436

Salmonid eggs provide marine-derived nutrients to Atlantic salmon and brown trout parr prior to the onset of winter - observations from a Swedish coastal stream

Environmental Biology of Fishes 98:2305-2313. 

doi: 10.1007/s10641-015-0436-y

Linking lab activity with growth and movement in the wild: explaining pace-of-life in a trout stream

Behavioral Ecology 26(3):877-884. 

doi: 10.1093/beheco/arv029

Telomere dynamics in wild brown trout: effects of compensatory growth and early growth investment

Oecologia 177:1221-1230. 

doi: 10.1007/s00442-015-3263-0

Design of emergence test arenas can affect the results of boldness assays

Ethology 121(6):556-565. 

doi: 10.1111/eth.12368

Behavioural responses to simulated bird attacks in marine three-spined sticklebacks after exposure to high CO2 levels

Marine and Freshwater Research 66:877-885. 

doi: 10.1071/MF14144

Environmental effects on behavioural development: consequences for fitness of captive-reared fish in the wild

Journal of Fish Biology 85(6):1946-1971. 

doi: 10.1111/jfb.12547

A review published in the JFB special issue "Integrated perspectives on fish stock enhancement"

A simple non-invasive method for measuring gross brain size in small live fish with semi-transparent heads

PeerJ 2:e586. 

doi: 10.7717/peerj.586

Ghrelin increases food intake, swimming activity and growth in juvenile brown trout (Salmo trutta)

Physiology & Behavior 124:15-22.

doi: 10.1016/j.physbeh.2013.10.034

Density-dependent compensatory growth in brown trout (Salmo trutta)

PLoS ONE 8(5):e63287. 

doi: 10.1371/journal.pone.0063287

Hatchery tank enrichment affects cortisol levels and shelter-seeking in Atlantic salmon (Salmo salar)

Canadian Journal of Fisheries and Aquatic Sciences 70(4):585-590. 

doi: 10.1139/cjfas-2012-0302

Early enrichment effects on brain development in hatchery-reared Atlantic salmon (Salmo salar): no evidence for a critical period

Canadian Journal of Fisheries and Aquatic Sciences 69(6):1481-1490.

doi: 10.1139/f2012-074

Bedömning av VattendragsIndeX (VIX) vid fångst av ål

Aqua reports 2024:6

doi: 10.54612/a.7c67793892 

Miljöövervakning – Elprovfiske i trendvattendrag 2022

Aqua notes 2023:23

doi: 10.54612/a.e02jkqa2j1

Båtelfiske i lugnflytande åar 2021 - metod, resultat och erfarenheter (Boat electrofishing in slow-flowing rivers 2021 – method, results, and experiences)

Aqua reports 2023:13

doi: 10.54612/a.76acmsrd73

Fisk i rinnande vatten - vadningselfiske, version 2.0 (Fish in running waters - wading electrofishing, version 2.0). 

Övervakningsmanual för akvatisk miljöövervakning, Programområde Sötvatten. Havs- och vattenmyndigheten, Göteborg.

Dnr: 975-20

Detta är IKEU - Integrerad Kalkeffektsuppföljning-programmets innehåll och resultat åren 2008-2021. 

SLU, Vatten och miljö: Rapport 2022:4

Fisk i rinnande vatten - elfiskebåt, version 1.0 (Fish in running waters - electrofishing boat, version 1.0). 

Övervakningsmanual för akvatisk miljöövervakning, Programområde Sötvatten. Havs- och vattenmyndigheten, Göteborg.

Dnr: 1907-22

Size dependent effects of passive integrated transponders (PIT-tags) on early life stages of salmon: a preliminary literature review. 

Uni Research Miljø LFI rapport 324. Uni Research, Bergen. 

ISSN: 1892-8889

Re-introduction of Atlantic sturgeon (Acipenser oxyrinchus) in Göta älv.

Status report 2023. Swedish Anglers Association, Univeristy  of Gothenburg, Gothenburg Museum of Natural History, Swedish Univeristy of Agricultural Sciences & Leibniz Institute of Freshwater Ecology and Inland Fisheries.

Förbättring och utvärdering av konnektivitet och habitatkvalitet för hållbar vattenkraft.

Rapport 2022:873. Energiforsk, Stockholm.

Sveriges biologer bör bidra mer till Wikipedia.

Fauna & Flora 121(1):52-54.

https://gupea.ub.gu.se/bitstream/handle/2077/85640/NKB_Debatt_Wikipedia.pdf